Shale gas
One tenth of all gas produced in Russia is an undersea shale gas. As the time elapses an undersea shale gas production in any country that has an access to the seas and oceans starts gradually increasing. So in Russia an undersea shale gas production makes up 9% of all the gas produced. Nowadays the total shale gas production volume amounts to 57 billion cubic meters which constitutes, as has been noted before, 9% of all gas production.